As the description says the hose I received is larger than stated and in an application such as a vacuum line on a turbocharged engine it is imperative that he is stuck. Unfortunately I can return it but I will be expected to cover the return postage costs which are equal to the value of the item. At least it stretches and fits over larger gauges with some effort so I can use it on other cars. As a side note, I also ordered 10mm and it fits great.